title: Grid cutoff as a result of improper FFD.
authors.affiliation: Washington State Department of Health, Division of Radiation Protection, Albuquerque, NM.
authors.forename: R
authors.initials: R
authors.lastname: Warner
mesh_terms: D006801:Humans; D019047:Phantoms, Imaging; D011829:Radiation Dosage; D011858:Radiographic Magnification / Q000295:instrumentation / Q000592:standards*; D011872:Radiology Department, Hospital; D012189:Retrospective Studies; D014481:United States